In his first-ever interview, the sole Australian survivor of the Waco siege has revealed to 60 Minutes what really took place during the 51-day stand-off, and why he believes crazed cult leader David Koresh will one day return to Earth as the son of God.

Jalal brothers back posting prank videos

Controversial Melbourne pranksters the Jalal brothers are back posting videos of bomb-threat pranks, unrepentant about the storm that followed faking a terror attack.

Yesterday the trio, Max Jalal, 20, his brother Arman, 18, and a 16-year-old who cannot be named posted a compilation of their past "public bombs, shootings and kidnapping" pranks to their Facebook page.

One clip shows one of the brothers dressed in traditional white Middle Eastern garb and throwing a black bag at a crowd of children at the beach, causing them to run in panic.

Another shows a 'bomb' being thrown into a car at an intersection as the driver waits for lights to change.

Max and Arman Jalal outside a Melbourne police station after their arrest. (AAP)

The video comes just days after the brothers revealed a Melbourne court had revised their bail conditions which banned them from producing or posting videos online.

"Proud to announce that we can start making our videos again, and it's all thanks to our amazing legal team. Couldn't have done it without them," the Facebook post read.

In late February the brothers' Melbourne home was raided by counter-terrorism police and they were charged with causing a public nuisance after video of a fake drive-by shooting surfaced online.

In the face of a media storm they claimed the pranks were all staged and they used family and friends as actors.

"It's our brand, we do pranks and we didn't want people to know that it was fake," Max Jalal said.

Assistant commissioner of counter-terrorism Ross Guenther said on the day of the arrests police had been monitoring the pranks "for weeks" but had decided to take action because the trio's actions were criminal.

"The nature of the videos has escalated. We believe the tipping point's been reached," he said.

"When the material was first identified they were less confronting. They've certainly escalated ... and that's why we've taken it on."

The brothers are due to appear before the Melbourne Magistrates Court on May 20, while the 16-year-old has been bailed to appear at a children's court.